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How to maintain the vacuum pump of vacuum packaging machine Vacuum packaging machine can automatic suction the air inside the bag, finishing vacuum sealing process after reaching the preset vacuum , also can blended into nitrogen or other gases, and then complete the sealing process.Vacuum packing machine is often used in food industry, because after vacuum packaging, food antioxidant, so as to achieve the purpose of long-term preservation, vacuum packaging machine include vacuum system, pneumatic system, electrical control system, pneumatic control system, vacuum system is primarily a vacuum pump, vacuum pump mainly include water ring vacuum pump, rotary vane vacuum pump, rotary piston vacuum pump, roots vacuum pump,oil diffusion pump, dry scroll vacuum pump, turbo molecular vacuum pump, and vacuum packing machine is mainly use the rotary vane vacuum pump. How to maintain the vacuum pump of vacuum packaging machine 1 , vacuum pump oil Vacuum pump operation ...